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Foodborne Pathogen Screening Using Magneto-fluorescent Nanosensor: Rapid Detection of E. Coli O157:H7
Published on: September 17, 2017
Magnetic sensing technologies: Principles and recent advances in food safety analysis
Zhilong Wang1, Luyu Wei2, Xueyan Sun1
1Hubei Key Laboratory of Microbial Transformation and Regulation of Biogenic Elements in the Middle Reaches of the Yangtze River, Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemistry Technology, School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
None:
Food safety remains a critical global concern, necessitating the development of rapid, sensitive, and reliable analytical technologies for the detection of diverse food hazards. In recent years, magnetic sensing technologies have emerged as powerful platforms for food safety monitoring, owing to their rapid signal response, high sensitivity, and inherent resistance to interference from complex food matrices. This review systematically summarizes the fundamental sensing principles and recent advances in magnetic biosensors, including magnetic relaxation switching, magnetic resonance imaging, giant magnetoresistance, and tunneling magnetoresistance-based sensing strategies, for food safety applications. Particular emphasis is placed on target recognition mechanisms, the design of magnetic probes, signal amplification strategies, and the analytical performance of these biosensors in complex food samples. Furthermore, current challenges and future perspectives in the development of magnetic biosensors are critically discussed, providing valuable insights to guide the design of next-generation magnetic sensing platforms for comprehensive and practical food safety analysis.
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